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The Nissan S14 240SX has become a popular platform for car enthusiasts, especially those interested in performance modifications. In this article, we will compare the dyno results of a stock S14 240SX against a well-modified version equipped with an HKS exhaust and an EcuTek tune. This comparison will highlight the performance gains achieved through modifications and provide insights for those considering similar upgrades.
Understanding the Stock S14 240SX
The stock Nissan S14 240SX is powered by a 2.4-liter inline-four engine, known as the KA24DE. This engine produces approximately 155 horsepower and 160 lb-ft of torque. While these figures may seem modest by today’s standards, the S14 is known for its lightweight chassis and balanced handling, making it a fun car to drive.
Modifications Overview
For our comparison, the modified S14 240SX features several key upgrades:
- HKS exhaust system
- EcuTek engine management tune
- Cold air intake
- Upgraded fuel injectors
- Performance intercooler
Dyno Testing Methodology
Both vehicles were tested on the same dyno under identical conditions to ensure accurate results. The testing procedure involved:
- Warm-up of the engine to optimal operating temperature
- Three consecutive pulls to average the results
- Monitoring of air-fuel ratios and boost levels
Dyno Results: Stock vs. Modified
Here are the dyno results for both configurations:
- Stock S14 240SX: 155 horsepower, 160 lb-ft of torque
- Modified S14 240SX: 230 horsepower, 210 lb-ft of torque
Performance Analysis
The modified S14 240SX shows a significant increase in both horsepower and torque compared to the stock version. The HKS exhaust system enhances exhaust flow, while the EcuTek tune optimizes engine parameters for improved performance. This combination allows the engine to breathe better and deliver more power.
Power Gains
From the dyno results, we can see that the modifications provided:
- Increase of 75 horsepower
- Increase of 50 lb-ft of torque
Torque Curve Comparison
The torque curve of the modified S14 shows a broader and flatter power band, which translates to better drivability and responsiveness. This is particularly noticeable in everyday driving situations and when accelerating from lower RPMs.
Driving Experience
With the modifications in place, the driving experience of the S14 240SX changes dramatically. Drivers report:
- Improved throttle response
- More aggressive sound from the HKS exhaust
- Enhanced acceleration and overall performance
Conclusion
In conclusion, the dyno comparison between the stock and modified S14 240SX clearly demonstrates the benefits of performance modifications. The increase in horsepower and torque, along with the improved driving experience, makes a strong case for enthusiasts looking to enhance their vehicles. For those considering similar upgrades, the combination of an HKS exhaust and an EcuTek tune is a proven path to significant performance gains.